如果替代属性设置为移位(S)，那么这些可变字符就是次要的。

If the alternate attribute is set to shifted (s), then these variable characters are of only minor importance.

youdao

替代属性控制对uca中的可变字符的处理：空白、标点和符号。

The alternate attribute controls the handling of variable characters in the UCA: white space, punctuation marks, and symbols.

youdao

而使用 VARCHAR 时，字符的数量是可变的，不执行额外的填充。

With a VARCHAR, the number of characters can vary, and no extra padding is performed.

youdao

Lists differ from strings in two ways; one way is that it's mutable, the other way is that the values need not be characters. They can be numbers, they can be characters, they can be strings they can even be other lists.

有两个不同之处，一个在于数组是可变的;,另一点在于数组里面的值，不一定是字符,可以是数，可以是字符,也可以是字符串,甚至可以是其他的数组。

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